"""
天翼云盘TV版客户端实现

基于tem目录下的设计思路重构的天翼云盘TV版客户端。
"""

import requests
import time
import json
import os
from typing import Dict, List, Optional, Any, Union
from datetime import datetime

from ..base import BaseCloudProvider, CloudFile, UploadResult, DownloadResult, FileType


class TianyiTVProvider(BaseCloudProvider):
    """天翼云盘TV版提供者"""
    
    def __init__(self, config: Dict[str, Any]):
        """
        初始化天翼云盘TV版客户端
        
        Args:
            config: 配置参数，包含access_token等
        """
        super().__init__(config)
        
        self.access_token = config.get('access_token', '')
        self.root_folder_id = config.get('root_folder_id', '-11')
        self.family_id = config.get('family_id', '')
        self.account_type = config.get('type', 'personal')  # personal or family
        
        # 初始化会话
        self.session = requests.Session()
        self.session.headers.update({
            'User-Agent': 'Mozilla/5.0 (Linux; Android 10; SM-G973F) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Mobile Safari/537.36',
            'Accept': 'application/json, text/plain, */*',
            'Accept-Language': 'zh-CN,zh;q=0.9,en;q=0.8',
            'Accept-Encoding': 'gzip, deflate, br',
            'Connection': 'keep-alive',
        })
        
        # 登录状态
        self._logged_in = False
        self._session_data = {}
        
        # 如果有access_token，设置为已登录状态
        if self.access_token:
            self._logged_in = True
            self._session_data['access_token'] = self.access_token
    
    def login(self) -> bool:
        """
        登录天翼云盘TV版
        
        对于TV版，通常使用access_token，不需要用户名密码登录
        
        Returns:
            bool: 登录是否成功
        """
        if self.access_token:
            self._logged_in = True
            self._session_data['access_token'] = self.access_token
            
            # 验证token是否有效
            return self._validate_token()
        else:
            print("TV版需要access_token")
            return False
    
    def logout(self) -> bool:
        """
        登出天翼云盘TV版
        
        Returns:
            bool: 登出是否成功
        """
        try:
            self._logged_in = False
            self._session_data.clear()
            return True
        except Exception as e:
            print(f"登出异常: {e}")
            return False
    
    def list(self, path: str = "/", recursive: bool = False) -> List[CloudFile]:
        """
        列出文件和文件夹
        
        Args:
            path: 路径，默认为根目录
            recursive: 是否递归列出子目录
            
        Returns:
            List[CloudFile]: 文件列表
        """
        if not self._logged_in:
            if not self.login():
                return []
        
        try:
            # 将路径转换为文件夹ID
            folder_id = self._path_to_folder_id(path)
            
            # 获取文件列表
            files_data = self._get_files_list(folder_id)
            if not files_data:
                return []
            
            files = []
            for file_data in files_data:
                cloud_file = self._convert_to_cloud_file(file_data)
                if cloud_file:
                    files.append(cloud_file)
                    
                    # 如果是递归模式且当前是文件夹，继续获取子文件
                    if recursive and cloud_file.is_dir():
                        sub_files = self.list(cloud_file.path, recursive=True)
                        files.extend(sub_files)
            
            return files
            
        except Exception as e:
            print(f"列出文件异常: {e}")
            return []
    
    def upload(self, local_path: str, remote_path: str, 
               rapid_upload: bool = True) -> UploadResult:
        """
        上传文件
        
        Args:
            local_path: 本地文件路径
            remote_path: 远程文件路径
            rapid_upload: 是否尝试秒传
            
        Returns:
            UploadResult: 上传结果
        """
        if not self._logged_in:
            if not self.login():
                return UploadResult(False, message="登录失败")
        
        try:
            if not os.path.exists(local_path):
                return UploadResult(False, message="本地文件不存在")
            
            # TV版上传逻辑
            # 这里简化处理，实际需要实现完整的上传流程
            return UploadResult(False, message="TV版上传功能待实现")
                
        except Exception as e:
            print(f"上传异常: {e}")
            return UploadResult(False, message=f"上传异常: {e}")
    
    def download(self, remote_path: str, local_path: str) -> DownloadResult:
        """
        下载文件
        
        Args:
            remote_path: 远程文件路径
            local_path: 本地保存路径
            
        Returns:
            DownloadResult: 下载结果
        """
        if not self._logged_in:
            if not self.login():
                return DownloadResult(False, message="登录失败")
        
        try:
            # 获取下载链接
            download_url = self.get_download_url(remote_path)
            if not download_url:
                return DownloadResult(False, message="获取下载链接失败")
            
            # 下载文件
            response = self.session.get(download_url, stream=True)
            if response.status_code == 200:
                # 确保目录存在
                os.makedirs(os.path.dirname(local_path), exist_ok=True)
                
                with open(local_path, 'wb') as f:
                    for chunk in response.iter_content(chunk_size=8192):
                        if chunk:
                            f.write(chunk)
                
                return DownloadResult(True, local_path=local_path, message="下载成功")
            else:
                return DownloadResult(False, message=f"下载失败: HTTP {response.status_code}")
                
        except Exception as e:
            print(f"下载异常: {e}")
            return DownloadResult(False, message=f"下载异常: {e}")
    
    def delete(self, remote_path: str) -> bool:
        """
        删除文件或文件夹
        
        Args:
            remote_path: 远程文件路径
            
        Returns:
            bool: 删除是否成功
        """
        if not self._logged_in:
            if not self.login():
                return False
        
        try:
            # TV版删除逻辑
            # 这里简化处理，实际需要实现完整的删除流程
            return False
            
        except Exception as e:
            print(f"删除异常: {e}")
            return False
    
    def mkdir(self, path: str) -> bool:
        """
        创建文件夹
        
        Args:
            path: 文件夹路径
            
        Returns:
            bool: 创建是否成功
        """
        if not self._logged_in:
            if not self.login():
                return False
        
        try:
            # TV版创建文件夹逻辑
            # 这里简化处理，实际需要实现完整的创建流程
            return False
            
        except Exception as e:
            print(f"创建文件夹异常: {e}")
            return False
    
    def move(self, src_path: str, dst_path: str) -> bool:
        """
        移动文件或文件夹
        
        Args:
            src_path: 源路径
            dst_path: 目标路径
            
        Returns:
            bool: 移动是否成功
        """
        # TV版暂不支持移动操作
        return False
    
    def copy(self, src_path: str, dst_path: str) -> bool:
        """
        复制文件或文件夹
        
        Args:
            src_path: 源路径
            dst_path: 目标路径
            
        Returns:
            bool: 复制是否成功
        """
        # TV版暂不支持复制操作
        return False
    
    def rename(self, src_path: str, new_name: str) -> bool:
        """
        重命名文件或文件夹
        
        Args:
            src_path: 源路径
            new_name: 新名称
            
        Returns:
            bool: 重命名是否成功
        """
        if not self._logged_in:
            if not self.login():
                return False
        
        try:
            # TV版重命名逻辑
            # 这里简化处理，实际需要实现完整的重命名流程
            return False
            
        except Exception as e:
            print(f"重命名异常: {e}")
            return False
    
    def get_file_info(self, path: str) -> Optional[CloudFile]:
        """
        获取文件信息
        
        Args:
            path: 文件路径
            
        Returns:
            Optional[CloudFile]: 文件信息，不存在返回None
        """
        if not self._logged_in:
            if not self.login():
                return None
        
        try:
            # 通过路径查找文件
            parent_path = os.path.dirname(path)
            filename = os.path.basename(path)
            
            files = self.list(parent_path)
            for file in files:
                if file.name == filename:
                    return file
            
            return None
            
        except Exception as e:
            print(f"获取文件信息异常: {e}")
            return None
    
    def get_download_url(self, path: str) -> Optional[str]:
        """
        获取文件下载链接
        
        Args:
            path: 文件路径
            
        Returns:
            Optional[str]: 下载链接，失败返回None
        """
        if not self._logged_in:
            if not self.login():
                return None
        
        try:
            # TV版获取下载链接逻辑
            # 这里简化处理，实际需要实现完整的获取流程
            return None
            
        except Exception as e:
            print(f"获取下载链接异常: {e}")
            return None
    
    def save_session(self, path: str) -> bool:
        """
        保存会话信息
        
        Args:
            path: 保存路径
            
        Returns:
            bool: 保存是否成功
        """
        try:
            session_data = {
                'access_token': self.access_token,
                'session_data': self._session_data,
                'logged_in': self._logged_in
            }
            
            with open(path, 'w', encoding='utf-8') as f:
                json.dump(session_data, f, ensure_ascii=False, indent=2)
            
            return True
            
        except Exception as e:
            print(f"保存会话异常: {e}")
            return False
    
    def load_session(self, path: str) -> bool:
        """
        加载会话信息
        
        Args:
            path: 会话文件路径
            
        Returns:
            bool: 加载是否成功
        """
        try:
            if not os.path.exists(path):
                return False
            
            with open(path, 'r', encoding='utf-8') as f:
                session_data = json.load(f)
            
            # 恢复会话数据
            self.access_token = session_data.get('access_token', '')
            self._session_data = session_data.get('session_data', {})
            self._logged_in = session_data.get('logged_in', False)
            
            return True
            
        except Exception as e:
            print(f"加载会话异常: {e}")
            return False
    
    def is_rapid_upload_supported(self) -> bool:
        """
        是否支持秒传
        
        Returns:
            bool: 是否支持秒传
        """
        return True
    
    # 私有方法
    def _validate_token(self) -> bool:
        """验证token是否有效"""
        try:
            # 调用一个简单的API来验证token
            # 这里简化处理，实际需要调用真实的API
            return True
        except Exception as e:
            print(f"验证token异常: {e}")
            return False
    
    def _path_to_folder_id(self, path: str) -> str:
        """将路径转换为文件夹ID"""
        if path == "/" or path == "":
            return self.root_folder_id
        # 这里简化处理，实际需要通过路径查找文件夹ID
        return self.root_folder_id
    
    def _get_files_list(self, folder_id: str) -> Optional[List[Dict[str, Any]]]:
        """获取文件列表"""
        try:
            # TV版获取文件列表的API调用
            # 这里简化处理，实际需要实现完整的API调用
            return []
        except Exception as e:
            print(f"获取文件列表异常: {e}")
            return None
    
    def _convert_to_cloud_file(self, file_data: Dict[str, Any]) -> Optional[CloudFile]:
        """转换为CloudFile对象"""
        try:
            file_type = FileType.FOLDER if file_data.get('isFolder') else FileType.FILE
            return CloudFile(
                file_id=file_data.get('id', ''),
                name=file_data.get('name', ''),
                size=file_data.get('size', 0),
                file_type=file_type,
                path=file_data.get('path', ''),
                md5=file_data.get('md5', ''),
                create_time=file_data.get('createTime', ''),
                modify_time=file_data.get('modifyTime', ''),
                parent_id=file_data.get('parentId', '')
            )
        except Exception as e:
            print(f"转换文件对象异常: {e}")
            return None